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| Mirrors > Home > MPE Home > Th. List > elrab3 | Structured version Visualization version GIF version | ||
| Description: Membership in a restricted class abstraction, using implicit substitution. (Contributed by NM, 5-Oct-2006.) |
| Ref | Expression |
|---|---|
| elrab.1 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| elrab3 | ⊢ (𝐴 ∈ 𝐵 → (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ 𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elrab.1 | . . 3 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) | |
| 2 | 1 | elrab 3645 | . 2 ⊢ (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ (𝐴 ∈ 𝐵 ∧ 𝜓)) |
| 3 | 2 | baib 545 | 1 ⊢ (𝐴 ∈ 𝐵 → (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ 𝜓)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1570 ∈ wcel 2145 {crab 3412 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 |
| This theorem is used by: unimax 4905 fnelfp 7173 fnelnfp 7175 fnse 8131 fin23lem30 10344 isf32lem5 10359 negn0 11667 ublbneg 12982 supminf 12984 sadval 16546 smuval 16571 dvdslcm 16688 dvdslcmf 16721 isprm2lem 16771 isacs1i 17745 isinito 18085 istermo 18086 subgacs 19284 nsgacs 19285 odngen 19704 sdrgacs 20967 lssacs 21151 ssdifidllem 21547 mretopd 23317 txkgen 23878 xkoco1cn 23883 xkoco2cn 23884 xkoinjcn 23913 ordthmeolem 24027 shft2rab 25736 sca2rab 25740 lhop1lem 26240 ftalem5 27313 vmasum 27452 eqcuts2 28051 elmade 28122 addonbday 28544 israg 29051 ebtwntg 29439 eupth2lem3lem3 30710 eupth2lem3lem4 30711 eupth2lem3lem6 30713 cycpmco2lem1 33566 cycpmco2lem4 33569 cycpmco2 33573 1arithufdlem2 33955 tgoldbachgt 35171 cvmliftmolem1 35860 nmulr0 36775 neibastop3 36981 fdc 38495 pclvalN 40763 dvhb1dimN 41859 hdmaplkr 42786 aks4d1p8 42953 sticksstones1 43012 fsuppssind 43439 diophren 43654 islmodfg 43910 fsovcnvlem 44853 ntrneiel 44921 radcnvrat 45138 supminfxr 46292 stoweidlem34 46862 |
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